21220211011003 has 2 divisors, whose sum is σ = 21220211011004. Its totient is φ = 21220211011002.

The previous prime is 21220211010923. The next prime is 21220211011007. The reversal of 21220211011003 is 30011011202212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21220211011003 - 2³³ = 21211621076411 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220211011007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610105505501 + 10610105505502.

It is an arithmetic number, because the mean of its divisors is an integer number (10610105505502).

Almost surely, 2^{21220211011003} is an apocalyptic number.

21220211011003 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220211011003 is an equidigital number, since it uses as much as digits as its factorization.

21220211011003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21220211011003 its reverse (30011011202212), we get a palindrome (51231222213215).

The spelling of 21220211011003 in words is "twenty-one trillion, two hundred twenty billion, two hundred eleven million, eleven thousand, three".